Acetabularia

A Dictionary of Plant Sciences

Acetabularia (mermaid's cup, mermaid's wineglass) A genus of dasycladalean algae in which the mature thallus consists of a single axis or ‘stalk’ with a whorl of gametangial sacs at the top. Found in warm regions in shallow, sheltered seas, attached to rocks, shells, etc. Fossil Acetabularia dating from the Tertiary have been found.

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© A Dictionary of Plant Sciences 1998, originally published by Oxford University Press 1998.

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	dasycladalean algae ...the thallus consists of an erect axis with branches, the whole showing radial symmetry. Most members show some degree of calcification. Fossil dasycladalean algae are known from the Lower Palaeozoic onwards. Modern genera include Acetabularia . Read more
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